Apparatus for extinguishing fires in coke-ovens



" (No Model.)

, J. H; CAMPBELL.

APPARATUS FOR EXTINGUISHING FIRES IN COKE OVENS. N0. Z53,18Z. Patented Feb. 7.18821,

Zfiwww I I Lave/n2? coke-oven,

. description and by JOSEPH H. CAMPBELL, OF PITTSBURG, PENNSYLVANIA.

APPARATUS FOR EXTINGUISHBN G FIRES IN COKE-OVENS.

SPECIFICATION forming part of Letters Patent No. 253,182, dated February 7,1882.

Application filed March 5, 1681.

(No model.)

To all whom it ma 1 concern:

Be it known that I, JOSEPH H. CAMPBELL, of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new I and useful Improvement on Apparatus for Extinguishing Fires in Coke-Ovens; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being bad to the accompanying drawings, and to the letters of reference marked thereon.

My invention consists in the combination of a furnace, steam -j et pipe,

arranged and operating with relation to each other so that the carbonic-acid gas generated in said furnace is drawn therefrom through the medium of said steam-jet and pipes and 'cooled and forced into the coke oven and into and among the burning coke, thereby extinguishing the fire and addingcarhon to the coke, all as will hereinafter more fully and at large appear.

To enable others skilled in the art with which my invention is most nearly connected to make and use'it, I will proceed to describe its construction and operation.

In the accompanying drawing, which forms part of this specification, A represents a vertical section of the furnace which I employ for evolving the carbonic-acid gas. This furnace is divided by a partition-wall into two compartments, B and O, the compartment B fornished with a grate, D, ash -pit e, and a lid,f. The compartment 0 communicates with the coke-oven through the medium of a pipe, g, into which enters a steam-jet pipe, h, which may communicate with a steam-generator.

To the pipe 9 is attached a pipe, i, which may be connected with areservoirof water.

To the under side of the pipe 9 is connected another pipe, j, which communicates with a water-trap, 7:, used for preventing the escape of gas in the operation of cooling it.

Thecoke-oven l is of the ordinary construction, and is charged with coal in the usual Way, and when cokcd and ready to be drawn this is done with the tools common to such operation.

The skillful mechanic will, from the foregoing reference to the accompanying drawings, readily understand the construction of the apparatus which I employ,

water-pipe, trap, and v 'bonizin g peat, as

and also its relation to the coke-oven. I will therefore proceed to describe the operation.

The chamber B of the furnace is charged with wood-charcoal and fired, the lid j' being placed over the chargingopening. Steam entering the jet-pipe h causes a draft on chambers O and B, which will cause the carbonicacid gas evolved by the burning mass ofcharcoal to enterthe pipe and is forced along and through it by the steam-jet. The gas, in its passage through the pipe g, is broughtin contact with a water-spray caused by water falling from pipe 2 and striking against the sides of the pipe g. The gas, in its passage through the water-spray; is thoroughly cooled, and in this condition enters the coke-oven I, which becomes filled, so that the gas is under pressure, and, entering the pores and interstices of the coke and filling them and the interspaces in the mass of coke, soon extinguishes the fire, cools 0a the mass, and the coke in the operation of cooling absorbs a large amount ofcarbon peculiar to wood-charcoal, and combines with thecarbon peculiar tobituminous coal, whereby a greater amount of carbon is secured in the coke and ofa superior kind, thereby adding to the weight of the coke, and at the same time. increasing its etiiciency as a fuel, with prop-v erties well adapted to the manufacture and working of metals.-

The trap k and pipe j are used for carrying off the water from the pipe 9 after the water has performed its office of cooling the gas in its passage through the pipe without waste of the gas by escaping. The construction and operation of this trap will be readily understood without further description,

I am aware that carbonic-acid gas has been introduced into retorts in the operation of cardescribed in Letters Patent granted to J. Adams, November 9, 1869, and thatcarbonic-acid gas has been introduced into a retort in the manufacture of wood-charcoal, as described in Letters Patent granted to J.

A. Matbicu, October 8, 1878.

like chamber and cooling the charge, which consists in cooling the carbonic-acid gas gen- 20 erated from the burning or carbonizing mass contained in the kiln, and subsequently forcing it back into the kiln and into and through the charge.

Having thus described my improvement, what I claim as of my invention is- The combination of the furnace A, having chambers B and U, pipe g, steamjet pipe h, water-pipes ij, trap is, and coke-oven, all consti acted and operating substantially as herein 30 described, and for the purpose set forth.

JOSEPH n. CAMPBELL.

the atmospheric air is expelled and combustion stopped.

1 am further aware that it is oldto cool gas prior to ejecting it into and upon burning buildings, such as described in Letters Patent. L granted to G. L. Garfield, November 28, 1876, No. 184,857, and Garfield and Pattison, July .15, 1879, No. 217,456.

All of the above citationsdifi'er H'Olll my improt'emennthe essence of which consists in a nm'el apparatus for generating carbonic-acid gas from wood-charcoal, cooling said gas, and then forcing it;into the coke-oven, for extinguishing, cooling, and enriching said coke by the addition of carbon from said wood-charcoal.

I also disclaim Witnesses:

J. J. JOHNSTON, W. S. GOLWELL.

as oi'my in ention the method of a charcoaldciln or of extinguishing the fire 

